Clutch



R. STAHL CLUTCH Filed Aug. 14, 1922 2 Sheets-Sheet 1 fado/,abe ail.

ec. 23, 1924. LSZMi R. STAHL CLUTCH Filed Aug. 14, 1922 2 Sheets-Sheet 2 @www in which:

remanentes; as, rese;

s RODOLPHE STAHL, OF DETROIT, KIEZIICHEGAN.

encres. 1

Toall t may concer/n:

Be it hown that l, ltonoLrHn STAHL, a

citizen ofthe United States, residing at Del treit, county of Wayne, State of Michigan, have invented a certain new'and useful lmprovement in Clutches, and declare the following to be a fullfclear, and exact description of the same, such as will enable' others 'skilled in the art to which it pertains to make and use the same, reference being had to the accom anying drawings, which form a part of this specification.

My invention relates to a clutch for an automobile. Anobject of my improvements is to provide an improved clutch which shall 'be 'compact n its assembld construction,

of small weight in its constituent parts, and cheap to construct and convenient to. assemhle. l secure this object in the apparatus illustrated in the accompanying drawings,

Figure l is an elevation' of a clutch embodying my invention, partly broken away.

Fig. 2 is a section on the line ll-ll of Fi, l.

i 3 is a partsectional viewsimilar to llg. 2 showing the. partsin a disengaged position.

Fi .f 4 is a view similar toL Fig. 3 showing t e parts in their engaged osition.

Fig. 5 is a detailed sections view t9 an enlarged scale on the line V-V of Fig. l..

Fig. 6 is a 'detailed elevation looking fronr the right of Fig. 5, the lever arrn` gland vthe late c being removed.

a 1s the shaft through which the power is conveyed to the transmission gearing and 'in a plane .parallel tace ha.

a2 is anextension of shaft a' coaxialv with the ily-wheel b and extends into said concavity thereof and is provided with '-abearing at thecenter of said dy-wheel. v

c is a plate provided with. aI hub c5 surrounding the shaft a whichK is keyed -or s lined to said shaft in such a manner as to a low `it to reciprocate. y"The dishof' said plate extends outwardly said hub-and e dy-wheel; *the loneY b2 'of fless,

dpplication tiled August le, 1922; Serial No. WLM.

is dished or made concaved on its side toward the web of the dyfwheel. 'lhe er1phery of said plate again turns outwardly forming a flat annular surface in a lane arallel tothe web of the Hy-wheel an the ictional surface b15 of said iiy-wheel. c2 is an annular steel plate secured by rivets c4 to thetlat surface at the periphery of the plate c and extending outwardly adjacent and parallel to vthe friction surface b5 Von" the web of the y-wheel. c3 indicates two textile or asbestos rings secured to the plate c2 and .forming rictlon linings upon opposite sides thereof. d is a pressure ring having an inner surface parallel and adjacent to the steelplate c2. The ring al has a peripheral cylindricah surface d4 fitting within and corresponding ,torthe cylindrical surface 'b2 uon the dywheel/and a second cylindrical) peripheral surface d3 of greater diameter ittin within and corresponding to the surface 8 upon the y-wheel. This forms an annular surface atthe periphery of the plate d corresponding and parallel to the surface upon the )dy-wheel,

' e is a plate; annular in form, and of a diameter corresponding to that of the dywheel, secured to the surface of the dywheel at its periphery and extending inward therefrom and dished so that its con-V cavity is toward that ot the dy-wheel. 'lhe inner edgei of the late e extendsinto the cavity in the Hy-w eel d? are ylugs u on the pressure ring, d' extending outwardly therefrom and through apertures in the late e. g indicates lever arms pivoted in t e lugs d2.' 71. indicate ins fitting into slots formed in the perip ery of the, ring d and engaging in apertures formed for that purpose 1n the rim ,of the dy wheel. The outer ends of the pins it are hardened and come directly in line with the outer ends of the rlever arms g. g2 in- 5100 dicate set screws, one of which passes trans- .versely through the outer end of each'oir thelever arms g and is provided with screwthreads engaging internal screw-threads inv titi apertures in said arm. 'lhe` set screws gs los vbear at their inner ends against the outer ends'of the pins h. l 1' is the usual slip ring adapted to reciprocate upon the shaft a and and having a groove around its periphery Yengaged by all@ lever k by which said ring can be recipro cated to oscillate the arms g;

ez indicates sockets pressed out of the ring e, closed at theirouter ends and opening inward. There is in each of these sockets a pressure spring f, one end of which bears a ainst the bottom of the socket e2, and t erefore the plate e and the other end engages `in a cavity provided therefor in the pressure ring 0l. 'lhe springs f act to' force the pressure rin d inward and against the asbestos or texti e lining c3 of the steel plate c2 so as to clamp said plate and its linin s between the friction surface b5 on the y wheel and the inner surface of the pressure ring d, as shown in Fig. 4. This unites the Hy wheel with the plate c and consequently the shaft jso that the power is conveyed from the engine through the Hy wheel to said shaft. v

By rocking the lever la the ring 7' is moved to the right along the shaft a, rocking the levers g, which draw'outward on the lugs d2 to draw the pressure ring d out of' engagement as shown in Fig. 3. Thus the steel plate c. is released and the connection is broken between the engine and the shaft a.

The dished form of the plate c affords clearance room for the assembling bolts of the Hy wheel and brings the annular plate c2 well within the cavity of' the Hy wheel, the

construction also permitting the pressure` ring d to engage within the cavity of the Hy wheel.

The plate e is easily and cheaply stamped and formed and when assembled in position presents a firm support for the springs f. Said plate also forms, in part, an enclosing casin for the parts within the ,cavity of the y wheel and toward the periphery thereof, l

The combined construction is compact, especially in an axial direction, and affords a strong and durable construction which is cheap to make and assemble and is permanent and eHicient in its operation.

What I claim is.:

1. The combination of a Hy wheel, a ring c, a pressure ring adapted to clamp the ring `c against said Hy wheel, said pressure ring having apertures through its periphery, pins fixed to said Hy wheel and extending throu h lsaid apertures, a plate e fixed to said y said 2. he combination of a Hy wheel having a concavity in its face, a transmissionl shaft extending into said concavity coaxial with said Hy wheel, a disk having a hub secured to the end of said 'transmission shaft, said disk having a Hange toward its periphery turning inward to form a dished construetion, said `disk being provided with a. plate extending outward from its pressure ring within the concavity of said Hyl Wheel adapted to engage said plate, said ring being provided with notches in its periphery, and pin's passin through and engaging in said notches an fixed to said Hy wheel at their inner ends, lugs extending outwardly from said ring, and levers pivoted 4in said lugs and engaging said pins 'ab theirouter ends.

3. The combination of a Hy wheel having a concavity in its'face, a transmission shaft extending into said concavity coaxial with said .fly wheel, a disk having a hub secured to the end of said transmission shaft, said disk having a Harige toward its periphery Aturning inwardto form a dished construccavity, said ring beingprovided with apertures, said pins extending through said apertures, and springs interposed between said pressure ring'and said annular plate.

4. The combination of' a Hy `wheel having a concavity in its face, a transmission shaft Aextending into said concavity coaxial. with said Hy wheel, a disk having a hub `secured to the end of said transmission sha-ft, said disk having a Hange toward its periphery turning inward to form. a dished construction, said disk being provided with a plate extending outward from its periphery, and a pressure ring within the concavity of said Hy wheel adapted to engage said plate, said ring being provided with notches in its periphery, Y

and pins passing through and engaging in said notches and fixed to said Hy wheelpat their inner ends, an annular plate secured to the faceof said Hy wheel around its periphery and extending over said cavity, said rlng being provided with apertures, said pins extending through said apertures, and springs f interposed between said pressure ring and said annular plate, said annular plate beinlg1 pressed outward tov form sockets in whic v the ends of saids rings engage. v

Intestimony w ereof, I sign thisspecification.

RODOLPHE STAI-IL.

periphery, a 

